Getting individual stream latency on a AUHAL object
Getting individual stream latency on a AUHAL object
- Subject: Getting individual stream latency on a AUHAL object
- From: Stéphane Letz <email@hidden>
- Date: Thu, 25 Aug 2011 13:23:47 +0200
Hi all,
Assuming stream latency is "sometimes" different from 0 (which seems not the case on 3 different cards I've just tested see previous " Measuring Input/Output latencies" mail), how can it be read when the real device is accessed using a AUHAL object?
Basically we "map" the real audio device on a set on N non-interleaved mono channels and we use the kAudioOutputUnitProperty_ChannelMap property to setup the channel mapping to be used. So I guess it should be possible to get the stream latency of any mapped one, directly by accessing the appropriate property of AUHAL.
Can this be done?
Thanks.
Stéphane Letz
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